Stop-motion for fulling-mills.



PATENTED APR. 26, 1904.-

J. 1?. RYAN. s'ror MOTION FOR PULLING MILLS.

APPLIOATIGN FILED MAY 16, 1902.-

vH0 MGDEL.

m: mains warns on. PNOYD-UYHD" wAsHms'rDN. u. a 4

UNITED STATES Patented April 26, 1904.

PATENT OFFICE.

STOP-MOTION FOR FULLlNG-NIILLS.

SPECIFICATION forming part of Letters Patent N 0.7 58,107, dated April 26, 1904.

Lgpiication filed May 16, 1902. Serial No. 107,569. fllo model.) i I 7 fulling goods the work is greatly facilitated by running the goods. double or in a plurality of ropes or runs side by side through the squeeze-rolls of a rotary felling-mill. When the cloth is run in this manner, one run is very apt to gain on the other, resulting in the formation of a short loop in one run, which of course stops its progress; but inasmuch as the apparatus continues to run holes are soon worn or burned by the rolls in the cloth run, which has ceased to properly travel.

My present invention hasfor its object the production of means for automatically stopping the operation of a fulling-mill upon'the formation of a short loop in a run of cloth traveling therethrough.

The various novel features of my invention will be fully described hereinafter and particularly pointed out in the following claims.

Figure 1 is a side elevation of arotary fulling-mill of well-known type with one embodiment of my invention applied thereto, the driving-pulley being partly broken out; and Fig. 2 is a left-hand end elevation, partly broken out, of the mill shown in Fig. 1,'some of the old parts thereof being omitted.

The casing A, driving-shaft A, driving-pulley'A clutch C, controlled by the shipper 0 shown as an arm fast on a rocking shaft 0, mounted in bearings 0' on the exterior .of the casing and having a handle 0 the-shaft A being mounted in fixed hearings on the casing and provided with a squeeze roll or rolls, as R, two being shown in Fig. 2, the upper rollshaft B having squeeze-rolls R thereon, journal-boxes If for said shaft, adapted to slide in vertical slots a in the casing, the leafsprings S, to which the boxes are attached, and their pressure-regulating rods 8 the V trap or box-like device '1 to receive the cloth as delivered from the squeeze-rolls, and its pivoted yieldingly-controlled top or cover T, Fig. 1, may be and are all of well-known or usual construction in rotary fulling-mills, the roll-shafts being geared together by the gears G G, Fig. 2.

The ordinary course of a rope or run of cloth through the mill is shown in Fig. 1 in dotted lines at M, the endless run passing through the squeeze-rolls into the trap or similar device and then sliding down along the bottom of the casing and being again carried to the squeeze-rolls, a guide roll or bar, aslO, Fig. 1, being located in front of the inlet side .of the rolls.

So long as the travel of the cloth is normal the fulling operation will progress satisfactol rily; but in Working a plurality of cloth runs side by side it sometimes happens. that one run will travel at a faster rate of speed than another and will be caught up to form a short loopas, for instance, indicated at M (see dotted lines, Fig. 1)-and when this loop becomes sufficiently shortto stop the movement of the run it will be obvious that the continued rotation of the squeeze-rolls in engagement with the cloth will burn or wear holes therein. To prevent such injury to the cloth, I have devised a stop-motion for the mill operated by or through the formation of a short loop'in a,

cloth run.

The sides of the casing below and at the inlet side ofthe squeeze-rolls are provided with segmental slots a (see Fig. 1,) which register with correspondingly-slotted metal plates (Z, fastened to the exterior of the casing, and a bar d is extended transversely through the casing and projects at its ends through i the slots and beyond the plates d.

' Arms CZ are secured at their lower ends to the projecting portions of the bar 03 said arms at their upper ends being secured to a rock-shaft 0Z which is herein shown as extended from one to the other side of the easing and mounted to rock in hub-like bearingplates 03 secured to the exterior of the casing, the segmental slots a" being arcs of a circle having its center at 6?.

Normally the swinging bar 6? occupies the full line position shown in Fig. 1 at the lower end of the segmental shots a and well above the path of movement of a cloth run when traveling properly.

A knock-0E arm al is secured to that end of the rock-shaft (Z at the travel side of the casing and movable into the path of a finger 0 (best shown in Fig. 2,) fast on the rocking shaft 0, to which it will be remembered the shipper e is rigidly attached.

In the full-line position of the knock-off arm (5* shown in Fig. 1 it will be manifestv that it is inoperative so far as the shipper is concerned, and the latter can be thrown by means of the hand-lever to move the clutch G into or out of operative position.

In Figs. 1 and 2 the clutch is shown as operative.

Now should a short loop be formed by one of the cloth runs as, for instance, is shown in dotted lines at M Fig. 1the loop will engage the swinging bar 0Z and swing the same toward the upper end of the slot (0 rocking the shaft d and lifting the outer end of the knock-off arm 01 into engagement with the finger c to turn the rocking'shaft 0 in the direction of the arrow 25, Fig. 2, to thereby throw the shaft and render the clutch inoperative.

By the stop-motion apparatus thus provided the formation of a short loop in a cloth run instantly stops the mill and prevents any injury to the cloth,- and it will be obvious that should only one run or rope of cloth be traveling through the machine and it should become looped to stop its travel the stop-motion herein shown and described would be equally effective. I

In working a plurality of cloth runs it is immaterial. which may make theshort loop, as in any case the stop-motion will be operated automatically to effect the stoppage of the mill.

The invention is applicable to all types and sizes of rotary fulling-mills with which I am familiar.

Having fully-described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. Ina rotary fulling-mill, squeeze-rolls, driving means therefor, including a shipper,

and a stop-motion operated by or through the.

formation of a short loop of cloth between the delivery and inlet sides of the rolls, said stopmotion including a transverse, swinging bar below the squeeze-rolls, and a knock-off arm mounted on a rock-shaft and movable into position to throw the shipper when a short loop of cloth engages and swings the bar, the cloth normally traveling below the bar and wholly out of engagement therewith, and the rock-shaft, located above said bar and operatively connected therewith.

2. Ina rotary fulling-mill, a casing, squeezerolls therein to act upon a plurality of runs of cloth traveling side by side, driving means for said rolls, including a shipper, and a stopmotion operated by or through the formation of a short loop in a cloth run, said stopmotion including a transverse swinging bar within the casing below and at the inlet side of the rolls and normally out of the path of the runs when traveling properly, a knock-off arm to throw the shipper when a short loop of a run engagesand lifts the bar, and connections' between the knock-off arm and the bar located outside the casing.

3. In arotary fulling-mill, a casing, squeezerolls therein adapted to act upon a plurality of runs of cloth traveling side by side, driving means for said rolls, -including a clutch and its shipper, and a stop-motion 0perated by the formation of a short loop in a cloth run traveling through the rolls, said stop-motion including a bar extended transversely across the casing below the rolls and normally above the path of the cloth runs, a rock-shaft mounted in the casing above said bar and having depending arms to the lower end of which the bar is secured, and a knockoff arm on the rock-shaft outside the casing, to throw the shipper and release the clutch when a short loop of cloth engages and raises the bar and thereby rocks the rock-shaft.

4:, In a rotary fulling-mill, a casing having segmental slots in itssides below and at the inlet side of the squeeze-rolls, squeeze-rolls within the casing, driving means therefor, including ashipper, and a stop-motion including abar extended'across the casing and projecting out through the segmental slots, a rock-shaft mounted in the casing above the slots and having depending external arms attached to the projecting ends of the bar, and a knock-off arm on said rock-shaft and movable into position to operate the shaft when the bar is engaged andlifted by a short loop of cloth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES P. RYAN.

Witnesses;

THOMAS F. ORowE, JOSEPH A. BRIGGS. 

